Finding the Fourth Proportional to 42,606.61, 63,839.27 and 25,916.15

Step by Step Solution

1. Step 1: Write the proportion equation
   42,606.61 : 63,839.27 = 25,916.15 : x
2. Step 2: Convert to fraction form
   42,606.61/63,839.27 = 25,916.15/x
3. Step 3: Cross multiply
   42,606.61x = 63,839.27 × 25,916.15
4. Step 4: Simplify right side
   42,606.61x = 1,654,468,321.60
5. Step 5: Solve for x
   x = 1,654,468,321.60/42,606.61
6. Step 6: Final answer
   x = 38,831.26